Bump stylelint from 16.8.2 to 16.9.0 (just-the-docs#1525)

Bumps [stylelint](https://github.com/stylelint/stylelint) from 16.8.2 to 16.9.0.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](stylelint/stylelint@16.8.2...16.9.0)

---
updated-dependencies:
- dependency-name: stylelint
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -8,7 +8,7 @@
   "devDependencies": {
     "npm-run-all": "^4.1.5",
     "prettier": "^3.3.3",
-    "stylelint": "^16.8.2",
+    "stylelint": "^16.9.0",
     "stylelint-config-standard-scss": "^13.1.0"
   },
   "scripts": {